Window-screen.



No. 883,348. PATENTED MAR 31, 190-8.

B. vG. ROCKWELL.

WINDOW SCREEN. Arrpmulog FILED JULY 5, 1907.7

A TTORNE Y5 BYRD C. ROCKWELL, OF MALVERN, ARKANSAS.

WIND OW-S GREEN.

Specification of Letters Patent.

Patented March 31, 1908.

Application filediJuIy 5, 1907. Serial No. 382,304.

To all whom it may concern:

Be it known that I, Brno C. RooKwnLL, a citizen of the United States, residing at Malvern, in the county of Hot Spring and State of Arkansas, have invented a new and useful Window-Screen, of which the following is a specification.

This invention relates to window screens of the extensible type and its object is to simplify and improve the construction of devices of this character by providing means whereby the screens can rest firmly upon either an inclined or a horizontal sill, and by providing extension runners of novel con struction and arrangement by means of which the adjustment of the screen can be increased.

With these and other objects in view the invention consists of certain novel features of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims.

In the accompanying drawings is shown the preferred form of the invention.

In said drawings: Figure 1 is an'elevation of a portion of the screen embodying the present improvements, parts thereof being broken away. Fig. 2 is a transverse section through one end of the screen. a Fig. 3 is a section on line x0c, Fig. 1. Fig. 1 is a section on line y-@ Fig. 1. F ig. 5 is a detail view of one of the extension runners. Fig. 6 is a similar view of a modified form of runner.

Referring to the figures by characters of end portion of the fabric 3 is designed to be rolled. A retaining strip 7 is secured upon shoulder 5 and designed to securely fasten the fabric thereon. The outer faces of the rails 1 and 4 are rounded as shown at 8 while the opposite faces of the rails 1 are grooved longitudinally as indicated at 9. Secured within each groove 9 at the free end of-each rail 1 is a runner which, as shown in Fig. 5,

is preferably formed of a wire body 10 designed to be secured within the groove by means of a staple 1.1 or in any other preferred manner and having a lateral extension 12 at one end from which projects a guide runner or stem 13. An arm 141 )ro jects at right angles from the other end of the-body and within a groove 15 provided therefor in rail 1 and disposed at the upper end of this arm is a curved retaining finger 16.

In assembling the screen. herein described the two sections A and B are placed with their flat or grooved faces together so that in cross section each two contacting rails will appear substantially semi-elliptical as shown in Fig. 3. The fingers 16 of the section A are then bent downward so as to lap and engage the curved surfaces of the rails 1 of section B and the fingers 16 of section B are similarly bent so as to engage the rails 1 of section A. The guiding stems 13 of section A will therefore project into the grooves 9 of section B and the stems on said section will project into the groove 9 of section A. It 1s therefore apparent that it would be impossible for the two sections to pull apart because the fingers 16 act as retaining means and, when the sections are drawn in opposite directions longitudinally, their movement will be limited by the fingers coming into contact. It will be noted that the guide stems or runners 13 roject beyond'the ends of the rails to W ich they are connected. A greater adjustment of the screen sections can therefore be ob tained because of the increased bearing surdevice upon. the curved faces of the rails 1.

As shown by dotted lines in Fig. 1, the grooves 9 of each section extend into the end rail 4 and therefore it becomes possible not only to obtain a greater extension of the screen as heretofore described but the same can be closed to occupy the minimum amount of space. I

. What is claimed is:

1.. An extensible screen comprising oppo sitely disposed. contacting sections, each section having longitudinal grooves therein, means upon each section for lapping and slidably engaging the opposite section to hold said sections against spreading, and an extensionrunner projecting beyond each section and disposed to travel within the groove of the other section.

2. An extensible screen comprising oppositely disposed lapping sections, each section having longitudinal grooves therein, means secured to each section for lapping and slidably engaging the opposite section to prevent the sections from spreading, and extension slides integral With said means and projecting beyond the ends of the sections, each of said slides being mounted to travel Within one of the grooves.

3. An extensible screen comprising oppositely disposed lapping sections, each of said sections comprising longitudinally grooved top and bottom rails, and end rails, means carried by the top and bottom rails of each section for lapping and slidably engaging the corresponding rails of the other section, and extension slides movable With and projecting beyond each section and disposed to travel Within the grooves, said slides being disposed to project into the end rails.

4. An extensible screen comprising lapping oppositely disposed sections, each of said sections having longitudinal grooves, and means secured Within and extending begaging the inner face of the opposite section, and means integral therewith for engaging the outer face of the opposite section.

5. An extensible screen comprising oppositely disposed lap ing sections,each section having longitudina grooves, and means secured Within each groove ior slidably engaging the outer and inner faces of the adjoining section, each of said means comprising a body, an extension slide at one end thereof, an arm, and a finger upon the arm.

6. An extensible screen comprising lapping sections each having a longitudinal groove, means for slidably connecting the sections, and means secured Within and extending beyond one end of each groove for slidably engaging the groove of the opposite section.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two Witnesses.

BYRD C, ROCKWELL.

Witnesses C. H. LEO,

yond the end of each groove for slidably en- H. A. STEVENS. 

